11a-13=12a+7

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Solution for 11a-13=12a+7 equation:


Simplifying
11a + -13 = 12a + 7

Reorder the terms:
-13 + 11a = 12a + 7

Reorder the terms:
-13 + 11a = 7 + 12a

Solving
-13 + 11a = 7 + 12a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-12a' to each side of the equation.
-13 + 11a + -12a = 7 + 12a + -12a

Combine like terms: 11a + -12a = -1a
-13 + -1a = 7 + 12a + -12a

Combine like terms: 12a + -12a = 0
-13 + -1a = 7 + 0
-13 + -1a = 7

Add '13' to each side of the equation.
-13 + 13 + -1a = 7 + 13

Combine like terms: -13 + 13 = 0
0 + -1a = 7 + 13
-1a = 7 + 13

Combine like terms: 7 + 13 = 20
-1a = 20

Divide each side by '-1'.
a = -20

Simplifying
a = -20

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